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The Ultimate Prompt Engineering Stack

Curated. Tested. Fast. Every link has a one-line purpose so you can act quickly. Use search to jump straight to what you need.

Prompt Collections & Marketplaces

Discovery. Ready-to-use prompts across tasks and domains.

Prompt Generators & Optimizers

Refinement. Turn vague ideas into precise instructions.

  • Promptimize

    Automated prompt enhancer.

  • Prompts Templates Builder

    Custom templates for repeat tasks.

  • PromptPerfect

    Iterative improvement for clarity and control.

  • LMQL

    Program prompts with constraints and control flow.

  • Team-GPT Prompt Builder

    2025's newest prompt builder with collaborative features.

  • HIX AI

    Multi-model support (DeepSeek, OpenAI, Claude) with AI suggestions.

  • Agenta

    Open-source platform for prompt experimentation and deployment.

  • Promptfoo

    Developer-friendly tool for testing LLMs with security features.

  • Prompt Engine

    Turns your simple ideas into professional-grade prompts that get exceptional results every single time.

  • OpenPromptStudio

    Open-source workspace for crafting prompts.

Advanced Prompting Tools

Systems. Chain steps, build apps, compare models.

  • Voiceflow

    Pro visual designer for complex chains (Paid).

  • LangChain

    Standard toolkit for LLM apps and chaining.

  • Conju.ai

    Drag-and-drop chains and testing.

  • Pliny

    Wrap great prompts as mini-apps (Paid).

  • ChatBase

    Train a site bot on your docs and pages.

  • Better ChatGPT

    Cleaner interface for API workflows.

Learning Resources & Communities

Depth. Frameworks, FAQs, and active peers.

Developer Tools & Libraries

Build. APIs, loaders, agents, and directories.

Ready to transform your business?